Import 316l Stainless Steel Square Pipe — Buy in wholesale FOB from Supplier in China
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316L Stainless Steel Square Pipe
Chongqing Perpetual Imp & Exp Co.,Ltd. supplies 316L stainless steel square pipe in side lengths from 20 mm to 250 mm and wall thicknesses from 2 mm to 20 mm, with round tube counterparts available in 12 mm to 830 mm outer diameter. The material is low-carbon austenitic stainless steel 316L, containing molybdenum for enhanced pitting resistance in chloride-bearing media. This welded square hollow section targets marine and shipbuilding applications where seawater exposure is constant, and the supplier also stocks dual-phase grades 2205 and 2507 alongside super-austenitic 904L and 254SMO for more aggressive service conditions.
The 316L grade limits carbon to 0.03 percent maximum to prevent sensitisation during welding, preserving corrosion resistance in the heat-affected zone. Chromium content is typically 16 to 18 percent, nickel 10 to 14 percent, and molybdenum 2 to 3 percent by mass, though buyers should request a mill test certificate to confirm the ladle analysis for any specific lot. Surface finish is typically annealed and pickled, removing oxide scale from welding or hot forming and restoring the passive layer. The square geometry provides uniform moment of inertia in two axes, making it preferable to round pipe for structural frameworks, railing systems, and equipment skids where bidirectional loading occurs.
Shipbuilders and marine fabricators are the primary buyers, followed by chemical processing contractors and architectural metalwork workshops. The supplier notes that special materials and non-standard dimensions can be customised, which implies open-die forming or dedicated roll sets for small-run square sections. Packaging is typically in bundles with end caps to prevent moisture ingress during ocean freight from Chongqing. Buyers should confirm whether the quoted grade meets ASTM A554 for welded mechanical tubing or JIS G3446 for structural purposes, as the test regime and acceptance criteria differ between the two standards.
| Side Length (square) | 20 mm to 250 mm |
| Wall Thickness | 2 mm to 20 mm |
| Material Grade | 316L (UNS S31603, max 0.03 % C typical) |
| Chromium Content | 16 to 18 % typical |
| Nickel Content | 10 to 14 % typical |
| Molybdenum Content | 2 to 3 % typical |
| Surface Finish | Annealed and pickled (standard for welded tube) |
| Product Form | Welded square hollow section |
| Applicable Standard | ASTM A554 / JIS G3446 (buyer to confirm with supplier) |
| Additional Grades Available | 2205, 2507/S32750, 904L, 254SMO, 304, 310S (per supplier stock) |
Chongqing Perpetual Imp & Exp Co.,Ltd. is based at No 5, Hongshi Road in Jiangbei District, Chongqing, 400020, China. The company holds a harbor trust tier on the platform, with a recorded response rate of 0.00 percent and average response time of zero hours, which suggests either a new listing or incomplete engagement metrics. Buyers should treat this as a signal to test responsiveness directly before relying on the messaging channel for urgent enquiries.
The supplier's profile emphasises stock availability across a broad stainless steel and alloy portfolio, including thick-walled and zero-cut non-standard pipes. No information is provided about factory ownership, production capacity, annual turnover, or audited quality systems. The address points to a commercial district rather than an industrial park, so the company may operate as a trading house or export agent rather than a mill. Buyers should verify mill source, welding procedure qualifications, and third-party inspection certificates when evaluating this supplier.
This 316L Stainless Steel Square Pipe is a premium-grade welded tube designed for marine and industrial applications, particularly shipbuilding. The low-carbon 316L composition provides superior corrosion resistance in chloride environments and seawater exposure. Available in standard international dimensions, these square pipes meet ASTM A554 and JIS G3446 specifications, making them ideal for structural, architectural, and chemical processing applications. Competitive pricing for bulk export orders with flexible MOQ available.
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Sourcing 316L Stainless Steel Square Pipe from Chongqing Perpetual Imp & Exp Co.,Ltd. - China Import Guide
Before placing an order with Chongqing Perpetual Imp & Exp Co.,Ltd., verify that the mill test certificates for 316L square pipe include the ladle analysis for carbon, chromium, nickel, and molybdenum, and that the mechanical properties meet the claimed standard. Ask whether the supplier is the mill, a mill agent, or an independent trader, because this determines whether certificate traceability is direct or secondary. Review the dimensional tolerance statement against your fabrication drawings, particularly if you are cutting the pipe to precise structural lengths where wall thickness variation affects weld preparation.
Confirm the Incoterms for any quotation, since Chongqing is an inland city and export shipments will likely move via river barge to Shanghai or another coastal port before ocean freight. Clarify who bears the cost and risk of the inland leg, and whether the quoted price includes export clearance and marine insurance. Payment terms typical for first transactions with Chinese trading houses range from 30 percent advance with 70 percent documentary credit, to full letter of credit at sight, but the supplier has not stated its preferred structure. Lead time for stocked sizes may differ sharply from customised dimensions, so obtain a written schedule before contract signature.
Upon arrival, inspect bundles for moisture damage and check that end caps are intact, because seawater ingress during transit can initiate pitting before the pipe even reaches the fabrication shop. Request a third-party inspection report from an agency such as SGS or BV if the end user requires independent verification of dimensions, surface condition, and chemical composition. Retain samples from each heat number for any downstream positive material identification testing. Documentation should include the certificate of origin, mill test certificate, packing list, and commercial invoice with harmonised system code 73044110 or the applicable tariff line for stainless steel rectangular and square hollow sections.
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30 suppliersBuy 316l Stainless Steel Squa in Bulk — Verified Supplier in China
When sourcing 316l Stainless Steel Square Pipe for your business, securing the right balance of quality and cost is essential. Chongqing Perpetual Imp & Exp Co.,Ltd., a verified supplier based in China, offers this product with key specifications including 316L (Low Carbon Austenitic Stainless Steel), C max 0.03%, Cr 16-18%, Ni 10-14%, Mo 2-3%, Mn max 2%, Si max 0.75%, and 15mm x 15mm to 100mm x 100mm; Wall Thickness 1.0mm to 4.0mm; Length 6m standard (custom available). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $5/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7306.40, making it a staple in the Stainless Steel Pipes & Pipe Fittings sector with strong demand from importing countries worldwide.
316l Stainless Steel Squa Specifications, Trade Terms & Pricing
Importing 316l Stainless Steel Squa requires careful attention to shipping logistics, customs compliance, and secure payment terms. Chongqing Perpetual Imp & Exp Co.,Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7306.40 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Chongqing Perpetual Imp & Exp Co.,Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 316l Stainless Steel Squa has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Stainless Steel Pipes & Pipe Fittings category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import 316l Stainless Steel Squa — Shipping, Logistics & Customs
Importing 316l Stainless Steel Squa requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7306.40 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 316l Stainless Steel Squa
What is the wholesale price of 316l Stainless Steel Square Pipe?
The current listed wholesale price for 316l Stainless Steel Square Pipe from Chongqing Perpetual Imp & Exp Co.,Ltd. is $5/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Chongqing Perpetual Imp & Exp Co.,Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for 316l Stainless Steel Squa?
The supplier, Chongqing Perpetual Imp & Exp Co.,Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 316l Stainless Steel Squa. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 316l Stainless Steel Square Pipe?
For international shipping and customs clearance, 316l Stainless Steel Square Pipe is classified under HS Code 7306.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import 316l Stainless Steel Squa from China?
To import 316l Stainless Steel Squa from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Chongqing Perpetual Imp & Exp Co.,Ltd.. Ensure you have the necessary import licenses for Stainless Steel Pipes & Pipe Fittings products in your destination country.
Is Chongqing Perpetual Imp & Exp Co.,Ltd. a verified supplier?
Yes, Chongqing Perpetual Imp & Exp Co.,Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 316l Stainless Steel Square Pipe?
The key specifications for 316l Stainless Steel Square Pipe supplied by Chongqing Perpetual Imp & Exp Co.,Ltd. include 316L (Low Carbon Austenitic Stainless Steel), C max 0.03%, Cr 16-18%, Ni 10-14%, Mo 2-3%, Mn max 2%, Si max 0.75%, and 15mm x 15mm to 100mm x 100mm; Wall Thickness 1.0mm to 4.0mm; Length 6m standard (custom available). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of 316l Stainless Steel Squa?
Chongqing Perpetual Imp & Exp Co.,Ltd. offers 316l Stainless Steel Squa with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 316l Stainless Steel Squa the most?
316l Stainless Steel Squa is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Chongqing Perpetual Imp & Exp Co.,Ltd. through our platform.
What certifications does this 316l Stainless Steel Squa supplier hold?
Chongqing Perpetual Imp & Exp Co.,Ltd. maintains international quality certifications. These ensure that the 316l Stainless Steel Squa meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 316l Stainless Steel Square Pipe on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Chongqing Perpetual Imp & Exp Co.,Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Chongqing Perpetual Imp & Exp Co.,Ltd..
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